package flowlogic;

import ast.DataConstant;

public class ExternalData extends DataConstant implements SpecialValue {

	private static ExternalData instance = null;
	
	public static ExternalData getInstance()
	{
		if (instance == null) {
			instance = new ExternalData();
		}
		instance.setName("#d");
		return instance;			
	}
	
	private ExternalData()
	{	
	}
	
	public String toString()
	{
		return "#d";
	}
}
